ISL6268EVAL1Z

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The ISL6268EVAL1Z has been designed for evaluating the performance of the ISL6269 device, which is a high frequency, fixed frequency, non-synchronous PWM flyback controller. As such, it can be classified as one of a variety of evaluation boards within the evaluation boards – DC/DC & AC/DC (Off-Line) SMPS range. This article will outline the application field and working principle of the ISL6268EVAL1Z.

The ISL6268EVAL1Z is designed to provide highly reliable, safe, and long lifetime performance, suitable for a wide range of applications. These include, but are not limited to, isolated lighting, DC/DC conversion, telecommunications and computer power supplies, industrial process control, and distributed power systems. It is designed to be suitable for use in demanding applications, with a high robustness to noise thanks to its dual-differential sensing and averaged current modulation control.

The working principle of the ISL6268EVAL1Z utilizes a PWM flyback topology, in which the primary side of the transformer is connected directly to the input voltage and the primary side of the switching circuit. When the primary switch turns on, current builds in the primary winding of the transformer, and as it reaches its peak, the primary switch is turned off and current flows in the secondary winding. When the secondary switch is turned on, the load current flows to the secondary side of the transformer, allowing energy to be transferred between input and output. The ISL6268EVAL1Z uses an onboard switching circuit, comprising of a high voltage and low voltage MOSFET, and a PWM controller IC for precision current control. The PWM controller dynamically senses and regulates the primary side current, providing proportional control to the power output, resulting in improved dynamic response and longer operating life.

The ISL6268EVAL1Z also features an array of protective functions, including current limiting, over-voltage, over-temperature and under-voltage protection. This provides greater operational reliability, enabling low voltage and high power system operation without the risk of components being destroyed due to sudden increase in current, over-temperature, or unintended over-voltage from downstream loads or voltage transients.

In conclusion, the ISL6268EVAL1Z is an ideal choice for powering a variety of applications in industries such as lighting, telecommunications and industrial process control. Its PWM flyback topology provides high efficiency, fast load response and long operating lifetime, and it also provides a suite of protection functions for enhanced reliability. As such, it can be classified as an evaluation board for DC/DC & AC/DC (Off-Line) SMPS.

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